Convertible chair



FIG. 1 is a front perspective view of a convertible chair showing my design in position for use as a rocking chair;

FIG. 2 is a rear perspective thereof in an alternate position for use as a chair;

FIG. 3 is a side elevational view; the opposite side being a mirror image thereof;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view;

FIG. 6 is a front elevational view;

FIG. 7 is a rear elevational view thereof. 

The ornamental design for a convertible chair, substantially as shown and described. 